Removable rim for the wheels of vehicles.



A. MICHELIN. BBMovABLE RIMFOR' THB WHEELS 0F vBHIcLBs.

' APPLICATION FILED DEO. 30, 1807. Patented Aug, 16, 1910.

2 SHBBTS-SHEBT l.

j` I \\\\\\\\\\\\\\\\\C A. MIGHELIN.

BEMOVABLE 31M FOR TEE WHEELS '0F VEHICLES.

UPLIUATIQH Pimm 13150.30, 1907.

QWQI'@ Patented Aug. 16, 1.910.

2 SHEETS-SHEET 2.

lill/lim vRims .fior the STATS WPEH'LNT orniCE.

' AnnnfivircHELiN, or PARIS, FRANCE.

` 'aEMoVAnLE am' reaffirm: 'WHELS or vEHIcLEs.

To'alrlwitbi 'it may-concern: jY

v`known that. I, ANDR MIGHELIN, a

.citizen of the Republic of France, and resident'of ,105 BoulevardPreire, Paris, in the said Republic engineer, have invented new anduseful rovements in Remd'vable Wllieels of Vehicles, of which the'following is a specification.

permitting of the rapid' removal from a-v wlieelof the rirnthe pneumatictire on` which 'is no longer in goody conditiom and its. rapidreplacement by a' new .rim fitted with!!l pneumatic tire inflated inadvance.-

vIt `consists in" roviding, .a sla'nting part obnedge of a oop fixed tothe wheel and iig-:irren .n on. this slanting part a device o keyswhich-follow itsform and are capablel ofidisplacement in an obliquedirection in such-x a manner that as they move outward they approach thecenter of *the wheel, thus leaving the wav free for causing theremovable rimv and tire to slide off fof the wheel; whereas if the keysare forced to move in the opposite direction they are caused to bearagainst the underside of the rim which .has been placed on the wheel, soasy to fix it in. its position.

The invention comprises also means for producin the oblique advance andlretirement of t e keys. l

The objectofthis invention is to secure the following advantages, vizi1st, the removable rim mayr be constructed comparatively cheaplybecause`- it does. not vhave aclose sliding fit vwith; the felly andiconsequently neither it nor' the fellyjnced be turned or ground to asmo'thsurface. 2nd, the removable rim may be potenrami taken oil"without removing from the wheel" the devices which secure- 'the'removable `rim in place,

In the accompanying drawings, Figure l is a transverse sectlon showing-aremovable rim mounted on a wooden wheel with the fixing key displacedfor permitting thewief4 moval of this rim. Fig. 2 is a similar view`showing the key in position for fixing thel rim firmly on the wheel.Fig. 3 is a plan View corresponding to Fig. l. 'Fig 4 is a.

transverse section illustrating a modification of means for operatingthe ke s. Figs. 5 and 6 are transverse sections" s owing al modificationin whiclrthe keys are arranged on the two sides of the folly, in pairs.Y

Specification of Lettersllatent. l Patented Aug. 16,1910. applicationaiedznecembe'r so, 19o?. serial No. 4o s,474 4 In the arrangement shownin Figs. 1, 2l l moved toward the center, they permit the tire rim to bewithdrawn and replaced (see Fig. 1).

- The movement of each of the keys is produced in the following 'mannerThe key c constitutes a. nutjon'a screw d; the latter inits-:..turnforms a nut'onthebolt e with its thread of,v opposite pitch.In-thisimanner,z

by .turning thejscrew d by means of a-bed keyor box Spanner engaging itshead g, the

key c is caused to move in the direction o'f an Ainclined plane, that is-to say following the axis` of the screw, in relation to the' screw dand, moreover, vthe screw d" in relation tothe bolt e; whence, for eachturn ofthe -screw dthe keymoves-in an inclined plane a distance equaltothe sum of the two travels.

In the drawing, the screw d being of a pitchof 1.5 millimeters toltheleftand the bolt c `of a pitchof 1.5 millimeters'to the right, in-v each-revolution to the left im'- parted to the, screw 'the key c will bewith? drawn 3, millimeters, in an .inclined plane and toward, the centerof the wheel, and i11- versel "turning to thefright-a `For disniountinfrilliepneumatic tire rim, each of the scewsnis" Aturned ltothef'leftby the box spanner,.until the correspondingkey abuts 'againstthe iange'slz, of the guides f)Qin this position, the keysxare withdrawnrom'contact-with the rimand carried sufficiently to- 'ward-the centerbffthe. Wheel to permitv of thelfree'passag of the pneumatictire rim(Fig. 1) A new rim litted'w'ith its'pneumat-1c tire being placed inposition, the screws are turned tothe right by the box Spanner, carryingthe keys into contact with the rim, and they retain it by an edge whichis inclined or straight according to its form (Fig. 2) The movement ofeaczh of the keys This systemtherefore 4possesses 4the advantage ofbeing extremely'rapid.

i may howeverl .be veffected byany known mechanical means for advancingandV withdrawing keys.

Fig. 4 illustrates a modification consisting -in the employment of asimple'screwi secured by a collare on the bolt e.'jFurt her, thevarrangementshown in Figs. v5 .and (5,: bascdon the same-principle,l maybe einployed, in which the hoop used has a conical- `surface on eachside and twovseries of sym-z i'net-ricall keys are used. 'In thisarrangement vthe bolt e 1s straight; its twoextrenn'- ties arescrew-threaded to opposite pltchesso as to produce the simultaneousadvance or withdrawal of these two keys; these lai er ascend ordescendthe two inclinedplanes and j, sliding between two guides of dovetailform. A

Itv will be understood vthat various changes maybe resorted to in'theform, construction" and arrangement oft-he several parts with" outdeparting from the spirit and scopeof l my invention.

What I claim as my invention and desire to secure by, Letters Patent, is:.-4

l. An apparatus of 'the character.` described comprising aI wheel, aXedhoop thereon having a 1part inclined toward the center ofthe wheekeys located on said in clined part, the internal surface of which;-'keys corresponds 1n shape to the inclined part 'of thehoop-.while'their external surface corresponds in shape to the removablerim which the wheel is to carry, and means for causing these keys tomove in the plane of the axisof the wheel along the inclined part of thehoop away Afrom or toward the center-Zotl the wheel so as to eitherengage the rim which the Wheel is to carry, guides for the keys andinclined bolts fixed to the wheel, and means carried by said boltsforcausing the keys to movelin the'plane of the' axis of the wheel alongthe incliiied part of the hoop away from vor toward the center of thewheel so as -tofeither engage the removable rim or withdraw from saidengagement 'for permitting .the rim be removed from the wheel.

An apparatus of Athe character described 'comprising a wheel, a fixedhoop thereon having a part inclined toward the center of the wheel, keyslocated o n said inclined part, the internalsurface of which keyscorresponds in shape .to theinclmed part of the hoop while them-externalsurface. corresponds inshape to the removable rim which the wheel is' tocarry, guides for the keys, inclined. bolts fixed to the wheel,nutshaving a 'screw-threaded engagement with the bolts and with the keysfor causing these keys to move lin the lane-of the axis of the wheelalong theinc ined part of the hoop away from or toward the center of thewheel so as to either engage the removable rim -orwithdraw from saidenga ement for Wheel. 4. An .apparatus of the character de scribedcomprising a Wheel, a -xed hoop thereon having a part-inclined towardthecenter of the wheel, keys located on said inclined part, lthe internal'surface of which vkeys corresponds inshape to the-inclined part of the.hoopA While their external surface corresponds vin shape into theremovable rim which the wheel is to carry, guides for the keys',inclined-bolts fixed to the wheel, nuts having a .screw'threaded en-'gagement with lthe bolts and a screw-thread led engagement of opposite`pitch with the keys for causing the keysto move rapidly in the plane ofthe axis of the wheel along the inclined-.part of-the hoop away from ortoward the. center of the wheel so as to either enga ethe removable rimor withdraw fri'ln'. aid engagement for permitting the rim to be removedfrom the wheel.

In testimony, that I claim the foregoing as my invention, I have signedmy name in presence of two witnesses, this sixteenth day of December1907.

ANDR MICHELIN. 'lVitnessesz y Hanson C. oxr, Amun Frau permitting therim to-be remove from the

